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Non-Return Valve (NRV) — view 1
Steam Accessories

Non-Return Valve (NRV)

Flanged non-return (check) valve with internal swing disc mechanism. Allows unrestricted flow in one direction while preventing backflow, commonly installed on boiler discharge and feedwater lines to protect pump integrity.

  • Minimal cracking pressure (silent operation)
  • Low maintenance swing mechanism
  • Excellent leak-tight sealing
  • Wide pressure and temperature range

Typical Application

Boiler discharge protection, feedwater lines, steam condensate systems, cross-connection prevention.

Technical Specifications

Body MaterialCast Steel (WCB / WC6)
Valve TypeSwing Check (Wafer or Flanged)
Pipe SizeDN15 to DN200
Working Pressure0–25 bar
Temperature Range–20 to +250°C
Face-to-FaceEN 558-1 / ASME B16.10 compliant

Specifications are indicative — exact options confirmed at the time of quotation.

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